Seoul vs New York City — Time Zone & Clock

Seoul is ahead by 13 hours

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

New York City

USA · -13h

20:00-1 day

London

United Kingdom · -8h

01:00

New York

USA · -13h

20:00-1 day

Tokyo

Japan · UTC±0

09:00

Dubai

United Arab Emirates · -5h

04:00

How far apart are Seoul and New York City?

Seoul is 13 hours ahead of New York City. When it's noon in Seoul, it's 23:00 in New York City.

Seoul observes Asia/Seoul and New York City observes America/New_York — a 13 hours gap between them.

Daily overlap window

When Seoul is in standard working hours, New York City is not — and vice versa. There is no mutual business window between these two locations.

Meeting time recommendations

No business hours overlap exists between Seoul and New York City. Showing the most balanced options with minimal inconvenience for both locations.

05:00 Seoul / 16:00 New York City⚡ One side off-hours

⚠️ 4h before working hours in Seoul

09:00 Seoul / 20:00 New York City⚡ One side off-hours

⚠️ 4h after working hours in New York City

04:00 Seoul / 15:00 New York City⚡ One side off-hours

⚠️ 5h before working hours in Seoul

Assumes a standard 9 AM–5 PM workday in each location's local timezone.

Public holidays this year

⚡ Upcoming holidays in both locations, confirm with your contact before booking.

Seoul7 holidays

Aug 15Liberation DaySOON

Sep 24Chuseok

Sep 25Chuseok

Sep 26Chuseok

Oct 3National Foundation Day

New York City6 holidays

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

Nov 11Veterans Day

Nov 26Thanksgiving Day

Seoul and New York City — practical scheduling

Coordinating between Seoul (South Korea) and New York City (USA) means working around a 13-hour time difference. Since standard business hours don't naturally overlap, meetings usually require one side to shift slightly outside their normal working day.

💡 Practical scheduling guidelines

⚡

05:00–06:00 in Seoul corresponds to 16:00–17:00 in New York City (4h before working hours in Seoul).

⚡

09:00–10:00 in Seoul corresponds to 20:00–21:00 in New York City (4h after working hours in New York City).

⚡

04:00–05:00 in Seoul corresponds to 15:00–16:00 in New York City (5h before working hours in Seoul).

With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.

Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.

Install ClockinSync Free →

Drag the slider at the top to convert any Seoul time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

Frequently Asked Questions

Is New York City ahead of or behind Seoul?

The offset is 13 hours — Seoul is ahead of New York City. Timezones: Asia/Seoul and America/New_York.

Is there a mutual working window between Seoul and New York City?

No mutual business hours exist between Seoul and New York City. The 13 hours difference pushes them into completely separate workdays.

Are there any upcoming DST changes for Seoul or New York City?

The 13 hours difference between Seoul and New York City is stable — no DST changes expected in the next 7 days.

When it is 12:00 noon in Seoul, what time is it in New York City?

Noon in Seoul corresponds to 11:00 PM in New York City.

How accurate is this Seoul to New York City converter?

The live slider at the top converts any Seoul time to New York City instantly. You can also type natural language like "9am" or "15:30".

Does Seoul have holidays coming up that could affect scheduling?

Yes — Seoul has an upcoming public holiday: Liberation Day on August 15. Check the holiday panel above before confirming meetings.

Which UTC offsets do Seoul and New York City follow?

Seoul observes Asia/Seoul and New York City observes America/New_York. Their UTC offset difference is 13 hours.

If I send an email at 5:00 PM Seoul time, when does my contact in New York City receive it?

An email sent at 5 PM in Seoul lands at 4:00 AM in New York City. Your New York City contact won't see it until their workday begins.

Quick time conversions: Seoul → New York City

Common reference points to help you plan across the time difference.

For every 11:00 AM in Seoul, it's simultaneously 10:00 PM in New York City.(-1 day)

What time is 7:00 AM Seoul in New York City?—6:00 PM(-1 day)

12:00 PMin Seoul→11:00 PMin New York City(-1 day)

When Seoul clocks show 8:00 AM, New York City reads 7:00 PM.(-1 day)

2:00 PMin Seoul→1:00 AMin New York City

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Seoul ↔ New York City

No overlap — one side will join outside working hours· Showing afternoon hours (12:00–20:00)

Seoul

New York City

12:00Working

23:00-1doff

13:00Working

00:00off

14:00Working

01:00off

15:00Working

02:00off

16:00Working

03:00off

17:00

04:00

18:00

05:00

19:00

06:00

20:00

07:00

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.